| US 7,594,719 B2 | ||
| Mailing ink, and ink tank for mailing, ink jet recording method for mailing and ink jet recording apparatus for mailing using the same | ||
| Hiroshi Tomioka, Tokyo (Japan); Hideki Yamakami, Yokohama (Japan); and Masako Udagawa, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Feb. 28, 2007, as Appl. No. 11/680,198. | ||
| Application 11/680198 is a continuation of application No. PCT/JP2006/318470, filed on Sep. 12, 2006. | ||
| Claims priority of application No. 2005-266796 (JP), filed on Sep. 14, 2005; application No. 2005-266797 (JP), filed on Sep. 14, 2005; and application No. 2005-266798 (JP), filed on Sep. 14, 2005. | ||
| Prior Publication US 2007/0148376 A1, Jun. 28, 2007 | ||
| Int. Cl. C09D 11/00 (2006.01) | ||
| U.S. Cl. 347—100 [106/31.13] | 1 Claim |
| 1. A mailing ink for use in ink jet recording, which provides an ‘a*’ of from −10 to 15 and a ‘b*’ of from −50 to −15 according
to the CIE L*a*b* color system in a printed portion obtained by applying the ink to a recording medium so as to give an application
amount of ink of 4.5 mg per square inch, and which provides an integrated value of reflection spectrum of 90 or lower in a
wavelength region of from 380 nm to 730 nm in the printed portion,
wherein the integrated value of reflection spectrum in the wavelength region of from 380 nm to 730 nm in the printed portion
is 30 or higher,
wherein the ink comprises as plurality of coloring materials,
wherein the plurality of coloring materials are C.I. Direct Blue 199, a compound of the following Exemplified Compound M8,
and a compound of the following Exemplified Compound Bk7, and
wherein the proportion (C.I. Direct Blue 199:Exemplified Compound M8:Exemplified Compound Bk7) of C.I. Direct Blue 199 to
the following Exemplified Compound M8 to the following Exemplified Compound Bk7 is 1:(0.3 to 0.4):(0.1 to 0.4) by mass
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